Event in Victoria Park organised by East London mosque and London Muslim Centre was open to ‘men, boys of all ages and girls under 12’

The communities secretary has said it was “absolutely unacceptable” for women to be excluded from taking part in a Muslim charity run in London.

The event on Sunday, in Victoria Park, Tower Hamlets, was advertised on the Muslim Charity Run website as an “inclusive 5km race” for “runners and supporters of all ages and abilities” – open to “men, boys of all ages and girls under 12”.

Speaking on LBC radio, the communities secretary, Steve Reed, said he was “appalled” and that the Equality and Human Rights Commission (EHRC) would determine whether any laws or regulations had been breached.

He added: “I saw these reports … and I was as horrified as anybody else.